Biology 9700 · AS & A Level · Structure of nucleic acids and replication of DNA

Structure of nucleic acids and replication of DNA — practice question

In a DNA molecule, $21.2\%$ of the bases are cytosine. What percentage would adenine be?

  • A$21.2\%$
  • B$28.8\%$
  • C$42.4\%$
  • D$57.6\%$

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI